| 摘要 |
<p>A clock supply apparatus includes a low-rate source clock generating unit (101) for generating a low-rate source clock signal (106), a frequency multiplication/division unit (102) for performing frequency multiplication/division processing for the low-rate source clock signal (106) to generate a high-rate clock signal (107) to be utilized in signal processing only during a period in which a sleep signal (108) remains nonactive, a sleep time measuring unit (103) for measuring a sleep time duration from the moment the sleep signal (108) becomes active and issuing a sleep end signal (109) upon measurement of a predetermined time period, and a sleep control unit (104) for controlling sleep or non-sleep mode of the signal processing block (105). The sleep control unit (104) decides end of the sleep period upon detection of the sleep end signal (109). <IMAGE></p> |
